Forget everything you think you know about Iron Man. Turns out he was powered by Lego. Yes, you read that correctly. The Tumblr "Source Code in Television and Films" by John Graham-Cumming has exposed the programming code Tony Stark used to bring his Iron Man suit to life. And it's a code for a Lego computer.

This has been confirmed by IMDb, the Internet Movie Database (which itself appears to be artificially-intelligent, much like Iron Man's J.A.R.V.I.S.):

The code that appears on the computer screen at 34 minutes into the movie is a utility that downloads firmware into Lego robotic toy (called RCX). It may suggest that Tony Stark used this program to download firmware into his robotic suit. [IMDb]

Graham-Cumming is a real-life programmer who spends his days hunting down the source codes that are featured in movies. Personally, I'm not surprised at all that Iron Man's suit is made out of Lego. What other substance on earth is as strong, as versatile as powerful as a Lego brick? Case closed.